src/mac/carbon/bitmap.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        bitmap.cpp
   3 // Purpose:     wxBitmap
   4 // Author:      AUTHOR
   5 // Modified by:
   6 // Created:     ??/??/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) AUTHOR
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "bitmapbase.h"
  14 #pragma implementation "bitmap.h"
  15 #endif
  16
  17 #include "wx/defs.h"
  18
  19 #include "wx/bitmap.h"
  20 #include "wx/icon.h"
  21 #include "wx/log.h"
  22 #include "wx/image.h"
  23 #include "wx/xpmdecod.h"
  24
  25 #if !USE_SHARED_LIBRARIES
  26 IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject)
  27 IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject)
  28 IMPLEMENT_ABSTRACT_CLASS(wxBitmapBase , wxGDIObject )
  29 IMPLEMENT_ABSTRACT_CLASS(wxBitmapHandlerBase, wxObject )
  30 #endif
  31
  32 #ifdef __DARWIN__
  33     #include <ApplicationServices/ApplicationServices.h>
  34 #else
  35     #include <PictUtils.h>
  36 #endif
  37
  38 #include "wx/mac/uma.h"
  39
  40 CTabHandle wxMacCreateColorTable( int numColors )
  41 {
  42         CTabHandle newColors; /* Handle to the new color table */
  43
  44         /* Allocate memory for the color table */
  45         newColors = (CTabHandle)NewHandleClear( sizeof (ColorTable) +
  46         sizeof (ColorSpec) * (numColors - 1) );
  47         if (newColors != nil)
  48         {
  49                 /* Initialize the fields */
  50                 (**newColors).ctSeed = GetCTSeed();
  51                 (**newColors).ctFlags = 0;
  52                 (**newColors).ctSize = numColors - 1;
  53                 /* Initialize the table of colors */
  54         }
  55         return newColors ;
  56 }
  57
  58 void wxMacDestroyColorTable( CTabHandle colors )
  59 {
  60         DisposeHandle( (Handle) colors ) ;
  61 }
  62
  63 void wxMacSetColorTableEntry( CTabHandle newColors , int index , int red , int green ,  int blue )
  64 {
  65         (**newColors).ctTable[index].value = index;
  66         (**newColors).ctTable[index].rgb.red = 0 ;// someRedValue;
  67         (**newColors).ctTable[index].rgb.green = 0 ; // someGreenValue;
  68         (**newColors).ctTable[index].rgb.blue = 0 ; // someBlueValue;
  69 }
  70
  71 GWorldPtr wxMacCreateGWorld( int width , int height , int depth )
  72 {
  73         OSErr err = noErr ;
  74         GWorldPtr port ;
  75         Rect rect = { 0 , 0 , height , width } ;
  76
  77         if ( depth < 0 )
  78         {
  79                 depth = wxDisplayDepth() ;
  80         }
  81
  82         err = NewGWorld( &port , depth , &rect , NULL , NULL , 0 ) ;
  83         if ( err == noErr )
  84         {
  85                 return port ;
  86         }
  87         return NULL ;
  88 }
  89
  90 void wxMacDestroyGWorld( GWorldPtr gw )
  91 {
  92         if ( gw )
  93                 DisposeGWorld( gw ) ;
  94 }
  95
  96 PicHandle wxMacCreatePict(GWorldPtr wp, GWorldPtr mask)
  97 {
  98    CGrafPtr    origPort ;
  99    GDHandle    origDev ;
 100
 101    PicHandle      pict;          // this is the Picture we give back
 102
 103    RGBColor    gray = { 0xCCCC ,0xCCCC , 0xCCCC } ;
 104    RGBColor    white = { 0xffff ,0xffff , 0xffff } ;
 105    RGBColor    black = { 0x0000 ,0x0000 , 0x0000 } ;
 106
 107    unsigned char *maskimage = NULL ;
 108    Rect portRect ;
 109    GetPortBounds( wp , &portRect ) ;
 110    int width = portRect.right - portRect.left ;
 111    int height = portRect.bottom - portRect.top ;
 112
 113    LockPixels( GetGWorldPixMap( wp ) ) ;
 114    GetGWorld( &origPort , &origDev ) ;
 115
 116    if ( mask )
 117    {
 118       maskimage = (unsigned char*) malloc( width * height ) ;
 119       SetGWorld( mask , NULL ) ;
 120       LockPixels( GetGWorldPixMap( mask ) ) ;
 121       for ( int y = 0 ; y < height ; y++ )
 122       {
 123          for( int x = 0 ; x < width ; x++ )
 124          {
 125             RGBColor col ;
 126
 127             GetCPixel( x + portRect.left , y + portRect.top , &col ) ;
 128             maskimage[y*width + x] = ( col.red == 0 ) ; // for monochrome masks
 129          }
 130       }
 131       UnlockPixels( GetGWorldPixMap( mask ) ) ;
 132    }
 133
 134    SetGWorld( wp , NULL ) ;
 135
 136    pict = OpenPicture(&portRect);   // open a picture, this disables drawing
 137    if(!pict)
 138       return NULL;
 139
 140    if ( maskimage )
 141    {
 142       RGBForeColor( &black ) ;
 143       RGBBackColor( &white ) ;
 144       PenMode(transparent);
 145
 146       for ( int y = 0 ; y < height ; ++y )
 147       {
 148          for( int x = 0 ; x < width ; ++x )
 149          {
 150             if ( maskimage[y*width + x] )
 151             {
 152                RGBColor col ;
 153
 154                GetCPixel( x + portRect.left , y + portRect.top , &col ) ;
 155                SetCPixel( x + portRect.left , y + portRect.top , &col ) ;
 156             }
 157             else {
 158                 // With transparency set this sets a blank pixel not a white one
 159                 SetCPixel( x + portRect.left , y + portRect.top , &white);
 160             }
 161          }
 162       }
 163       free( maskimage ) ;
 164       maskimage = NULL ;
 165    }
 166    else
 167    {
 168       RGBBackColor( &gray ) ;
 169       EraseRect(&portRect);
 170       RGBForeColor( &black ) ;
 171       RGBBackColor( &white ) ;
 172
 173       CopyBits(GetPortBitMapForCopyBits(wp), /* src PixMap - we copy image over
 174                                               * itself - */
 175                GetPortBitMapForCopyBits(wp), //  dst PixMap - no drawing occurs
 176                &portRect,    // srcRect - it will be recorded and compressed -
 177                &portRect,    // dstRect - into the picture that is open -
 178                srcCopy,NULL); // copyMode and no clip region
 179    }
 180    ClosePicture();                  // We are done recording the picture
 181    UnlockPixels( GetGWorldPixMap( wp ) ) ;
 182    SetGWorld( origPort , origDev ) ;
 183
 184    return pict;                  // return our groovy pict handle
 185 }
 186
 187 wxBitmapRefData::wxBitmapRefData()
 188 {
 189     m_ok = FALSE;
 190     m_width = 0;
 191     m_height = 0;
 192     m_depth = 0;
 193     m_quality = 0;
 194     m_numColors = 0;
 195     m_bitmapMask = NULL;
 196     m_hBitmap = NULL ;
 197     m_hPict = NULL ;
 198     m_hIcon = NULL ;
 199     m_bitmapType = kMacBitmapTypeUnknownType ;
 200 }
 201
 202 // TODO move this do a public function of Bitmap Ref
 203 static void DisposeBitmapRefData(wxBitmapRefData *data)
 204 {
 205         switch (data->m_bitmapType)
 206         {
 207                 case kMacBitmapTypePict :
 208                         {
 209                                 if ( data->m_hPict )
 210                                 {
 211                                         KillPicture( data->m_hPict ) ;
 212                                         data->m_hPict = NULL ;
 213                                 }
 214                         }
 215                         break ;
 216                 case kMacBitmapTypeGrafWorld :
 217                         {
 218                                 if ( data->m_hBitmap )
 219                                 {
 220                                         wxMacDestroyGWorld( data->m_hBitmap ) ;
 221                                         data->m_hBitmap = NULL ;
 222                                 }
 223                         }
 224                         break ;
 225                 case kMacBitmapTypeIcon :
 226                 if ( data->m_hIcon )
 227                 {
 228                         DisposeCIcon( data->m_hIcon ) ;
 229                         data->m_hIcon = NULL ;
 230                 }
 231
 232                 default :
 233                         // unkown type ?
 234                         break ;
 235         }
 236
 237   if (data->m_bitmapMask)
 238   {
 239     delete data->m_bitmapMask;
 240     data->m_bitmapMask = NULL;
 241   }
 242 }
 243
 244 wxBitmapRefData::~wxBitmapRefData()
 245 {
 246   DisposeBitmapRefData( this ) ;
 247 }
 248
 249 wxList wxBitmapBase::sm_handlers;
 250
 251
 252 bool wxBitmap::CopyFromIcon(const wxIcon& icon)
 253 {
 254     Ref(icon) ;
 255     return true;
 256 }
 257
 258 wxBitmap::wxBitmap()
 259 {
 260     m_refData = NULL;
 261
 262     if ( wxTheBitmapList )
 263         wxTheBitmapList->AddBitmap(this);
 264 }
 265
 266 wxBitmap::~wxBitmap()
 267 {
 268     if (wxTheBitmapList)
 269         wxTheBitmapList->DeleteObject(this);
 270 }
 271
 272 wxBitmap::wxBitmap(const char bits[], int the_width, int the_height, int no_bits)
 273 {
 274     m_refData = new wxBitmapRefData;
 275
 276     M_BITMAPDATA->m_width = the_width ;
 277     M_BITMAPDATA->m_height = the_height ;
 278     M_BITMAPDATA->m_depth = no_bits ;
 279     M_BITMAPDATA->m_numColors = 0;
 280     if ( no_bits == 1 )
 281     {
 282         M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
 283         M_BITMAPDATA->m_hBitmap = wxMacCreateGWorld( the_width , the_height , no_bits ) ;
 284         M_BITMAPDATA->m_ok = (M_BITMAPDATA->m_hBitmap != NULL ) ;
 285
 286         CGrafPtr        origPort ;
 287         GDHandle        origDevice ;
 288
 289         GetGWorld( &origPort , &origDevice ) ;
 290         SetGWorld( M_BITMAPDATA->m_hBitmap , NULL ) ;
 291         LockPixels( GetGWorldPixMap( M_BITMAPDATA->m_hBitmap ) ) ;
 292
 293         // bits is a char array
 294
 295         unsigned char* linestart = (unsigned char*) bits ;
 296         int linesize = ( the_width / (sizeof(unsigned char) * 8)) ;
 297         if ( the_width % (sizeof(unsigned char) * 8) ) {
 298             linesize += sizeof(unsigned char);
 299         }
 300
 301         RGBColor colors[2] = {
 302             { 0xFFFF , 0xFFFF , 0xFFFF } ,
 303             { 0, 0 , 0 }
 304         } ;
 305
 306         for ( int y = 0 ; y < the_height ; ++y , linestart += linesize )
 307         {
 308             for ( int x = 0 ; x < the_width ; ++x )
 309             {
 310                 int index = x / 8 ;
 311                 int bit = x % 8 ;
 312                 int mask = 1 << bit ;
 313                 if ( linestart[index] & mask )
 314                 {
 315                     SetCPixel( x , y , &colors[1] ) ;
 316                 }
 317                 else
 318                 {
 319                     SetCPixel( x , y , &colors[0] ) ;
 320                 }
 321             }
 322         }
 323         UnlockPixels( GetGWorldPixMap( M_BITMAPDATA->m_hBitmap ) ) ;
 324
 325         SetGWorld( origPort , origDevice ) ;
 326     }
 327     else
 328     {
 329         wxFAIL_MSG(wxT("multicolor BITMAPs not yet implemented"));
 330     }
 331
 332     if ( wxTheBitmapList ) {
 333         wxTheBitmapList->AddBitmap(this);
 334     }
 335 }
 336
 337 wxBitmap::wxBitmap(int w, int h, int d)
 338 {
 339     (void)Create(w, h, d);
 340
 341     if ( wxTheBitmapList )
 342         wxTheBitmapList->AddBitmap(this);
 343 }
 344
 345 wxBitmap::wxBitmap(void *data, wxBitmapType type, int width, int height, int depth)
 346 {
 347     (void) Create(data, type, width, height, depth);
 348
 349     if ( wxTheBitmapList )
 350         wxTheBitmapList->AddBitmap(this);
 351 }
 352
 353 wxBitmap::wxBitmap(const wxString& filename, wxBitmapType type)
 354 {
 355     LoadFile(filename, type);
 356
 357     if ( wxTheBitmapList )
 358         wxTheBitmapList->AddBitmap(this);
 359 }
 360
 361 bool wxBitmap::CreateFromXpm(const char **bits)
 362 {
 363     wxCHECK_MSG( bits != NULL, FALSE, wxT("invalid bitmap data") )
 364     wxXPMDecoder decoder;
 365     wxImage img = decoder.ReadData(bits);
 366     wxCHECK_MSG( img.Ok(), FALSE, wxT("invalid bitmap data") )
 367     *this = wxBitmap(img);
 368     if ( wxTheBitmapList ) wxTheBitmapList->AddBitmap(this);
 369     return TRUE;
 370 }
 371
 372 wxBitmap::wxBitmap(const char **bits)
 373 {
 374     (void) CreateFromXpm(bits);
 375 }
 376
 377 wxBitmap::wxBitmap(char **bits)
 378 {
 379     (void) CreateFromXpm((const char **)bits);
 380 }
 381
 382 wxBitmap wxBitmap::GetSubBitmap(const wxRect &rect) const
 383 {
 384    wxCHECK_MSG( Ok() &&
 385                 (rect.x >= 0) && (rect.y >= 0) &&
 386                 (rect.x+rect.width <= GetWidth()) &&
 387                 (rect.y+rect.height <= GetHeight()),
 388                 wxNullBitmap, wxT("invalid bitmap or bitmap region") );
 389
 390
 391    wxBitmap ret( rect.width, rect.height, GetDepth() );
 392    wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
 393
 394    WXHBITMAP origPort;
 395    GDHandle  origDevice;
 396
 397    GetGWorld( &origPort, &origDevice );
 398
 399    // Update the subbitmaps reference data
 400    wxBitmapRefData *ref = (wxBitmapRefData *)ret.GetRefData();
 401
 402    ref->m_numColors     = M_BITMAPDATA->m_numColors;
 403    ref->m_bitmapPalette = M_BITMAPDATA->m_bitmapPalette;
 404    ref->m_bitmapType    = M_BITMAPDATA->m_bitmapType;
 405
 406    // Copy sub region of this bitmap
 407    if(M_BITMAPDATA->m_bitmapType == kMacBitmapTypePict)
 408    {
 409        printf("GetSubBitmap:  Copy a region of a Pict structure - TODO\n");
 410    }
 411    else if(M_BITMAPDATA->m_bitmapType == kMacBitmapTypeGrafWorld)
 412    {
 413        // Copy mask
 414        if(GetMask())
 415        {
 416            WXHBITMAP submask, mask;
 417            RGBColor  color;
 418
 419            mask = GetMask()->GetMaskBitmap();
 420            submask = wxMacCreateGWorld(rect.width, rect.height, 1);
 421            LockPixels(GetGWorldPixMap(mask));
 422            LockPixels(GetGWorldPixMap(submask));
 423
 424            for(int yy = 0; yy < rect.height; yy++)
 425            {
 426                for(int xx = 0; xx < rect.width; xx++)
 427                {
 428                    SetGWorld(mask, NULL);
 429                    GetCPixel(rect.x + xx, rect.y + yy, &color);
 430                    SetGWorld(submask, NULL);
 431                    SetCPixel(xx,yy, &color);
 432                }
 433            }
 434            UnlockPixels(GetGWorldPixMap(mask));
 435            UnlockPixels(GetGWorldPixMap(submask));
 436            ref->m_bitmapMask = new wxMask;
 437            ref->m_bitmapMask->SetMaskBitmap(submask);
 438        }
 439
 440        // Copy bitmap
 441        if(GetHBITMAP())
 442        {
 443            WXHBITMAP subbitmap, bitmap;
 444            RGBColor  color;
 445
 446            bitmap = GetHBITMAP();
 447            subbitmap = ref->m_hBitmap ;
 448            LockPixels(GetGWorldPixMap(bitmap));
 449            LockPixels(GetGWorldPixMap(subbitmap));
 450
 451            for(int yy = 0; yy < rect.height; yy++)
 452            {
 453                for(int xx = 0; xx < rect.width; xx++)
 454                {
 455                    SetGWorld(bitmap, NULL);
 456                    GetCPixel(rect.x + xx, rect.y + yy, &color);
 457                    SetGWorld(subbitmap, NULL);
 458                    SetCPixel(xx, yy, &color);
 459                }
 460            }
 461            UnlockPixels(GetGWorldPixMap(bitmap));
 462            UnlockPixels(GetGWorldPixMap(subbitmap));
 463        }
 464    }
 465    SetGWorld( origPort, origDevice );
 466
 467    return ret;
 468 }
 469
 470 bool wxBitmap::Create(int w, int h, int d)
 471 {
 472     UnRef();
 473
 474     m_refData = new wxBitmapRefData;
 475
 476     M_BITMAPDATA->m_width = w;
 477     M_BITMAPDATA->m_height = h;
 478     M_BITMAPDATA->m_depth = d;
 479
 480     M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
 481     M_BITMAPDATA->m_hBitmap = wxMacCreateGWorld( w , h , d ) ;
 482     M_BITMAPDATA->m_ok = (M_BITMAPDATA->m_hBitmap != NULL ) ;
 483     return M_BITMAPDATA->m_ok;
 484 }
 485
 486 int wxBitmap::GetBitmapType() const
 487 {
 488    wxCHECK_MSG( Ok(), kMacBitmapTypeUnknownType, wxT("invalid bitmap") );
 489
 490    return M_BITMAPDATA->m_bitmapType;
 491 }
 492
 493 void wxBitmap::SetHBITMAP(WXHBITMAP bmp)
 494 {
 495     DisposeBitmapRefData( M_BITMAPDATA ) ;
 496
 497     M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
 498     M_BITMAPDATA->m_hBitmap = bmp ;
 499           M_BITMAPDATA->m_ok = (M_BITMAPDATA->m_hBitmap != NULL ) ;
 500 }
 501
 502 bool wxBitmap::LoadFile(const wxString& filename, wxBitmapType type)
 503 {
 504     UnRef();
 505
 506     wxBitmapHandler *handler = FindHandler(type);
 507
 508     if ( handler )
 509     {
 510         m_refData = new wxBitmapRefData;
 511
 512         return handler->LoadFile(this, filename, type, -1, -1);
 513     }
 514     else
 515     {
 516         wxImage loadimage(filename, type);
 517         if (loadimage.Ok()) {
 518             *this = loadimage;
 519             return true;
 520         }
 521     }
 522     wxLogWarning("no bitmap handler for type %d defined.", type);
 523     return false;
 524 }
 525
 526 bool wxBitmap::Create(void *data, wxBitmapType type, int width, int height, int depth)
 527 {
 528     UnRef();
 529
 530     m_refData = new wxBitmapRefData;
 531
 532     wxBitmapHandler *handler = FindHandler(type);
 533
 534     if ( handler == NULL ) {
 535         wxLogWarning("no bitmap handler for type %d defined.", type);
 536
 537         return FALSE;
 538     }
 539
 540     return handler->Create(this, data, type, width, height, depth);
 541 }
 542
 543 wxBitmap::wxBitmap(const wxImage& image, int depth)
 544 {
 545     wxCHECK_RET( image.Ok(), wxT("invalid image") )
 546     wxCHECK_RET( depth == -1, wxT("invalid bitmap depth") )
 547
 548     m_refData = new wxBitmapRefData();
 549
 550     if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 551
 552     // width and height of the device-dependent bitmap
 553     int width = image.GetWidth();
 554     int height = image.GetHeight();
 555
 556     // Create picture
 557
 558     Create( width , height , 32 ) ;
 559
 560     CGrafPtr origPort ;
 561     GDHandle origDevice ;
 562
 563     PixMapHandle pixMap = GetGWorldPixMap(GetHBITMAP()) ;
 564     LockPixels( pixMap );
 565
 566     GetGWorld( &origPort , &origDevice ) ;
 567     SetGWorld( GetHBITMAP() , NULL ) ;
 568
 569     // Render image
 570     RGBColor colorRGB ;
 571
 572     register unsigned char* data = image.GetData();
 573     char* destinationBase = GetPixBaseAddr( pixMap );
 574     register unsigned char* destination = (unsigned char*) destinationBase ;
 575     for (int y = 0; y < height; y++)
 576     {
 577         for (int x = 0; x < width; x++)
 578         {
 579             *destination++ = 0 ;
 580             *destination++ = *data++ ;
 581             *destination++ = *data++ ;
 582             *destination++ = *data++ ;
 583         }
 584         destinationBase += ((**pixMap).rowBytes & 0x7fff);
 585         destination = (unsigned char*) destinationBase ;
 586     }
 587     if ( image.HasMask() )
 588     {
 589       data = image.GetData();
 590
 591       wxColour maskcolor(image.GetMaskRed(), image.GetMaskGreen(), image.GetMaskBlue());
 592       RGBColor white = { 0xffff, 0xffff, 0xffff };
 593       RGBColor black = { 0     , 0     , 0      };
 594       wxBitmap maskBitmap ;
 595
 596       maskBitmap.Create( width, height, 1);
 597       LockPixels( GetGWorldPixMap(maskBitmap.GetHBITMAP()) );
 598       SetGWorld(maskBitmap.GetHBITMAP(), NULL);
 599
 600       for (int y = 0; y < height; y++)
 601       {
 602           for (int x = 0; x < width; x++)
 603           {
 604               if ( data[0] == image.GetMaskRed() && data[1] == image.GetMaskGreen() && data[2] == image.GetMaskBlue() )
 605               {
 606                 SetCPixel(x,y, &white);
 607               }
 608               else {
 609                       SetCPixel(x,y, &black);
 610               }
 611               data += 3 ;
 612           }
 613       }  // for height
 614       SetGWorld(GetHBITMAP(), NULL);
 615       SetMask(new wxMask( maskBitmap ));
 616       UnlockPixels( GetGWorldPixMap(maskBitmap.GetHBITMAP()) );
 617     }
 618
 619     UnlockPixels( GetGWorldPixMap(GetHBITMAP()) );
 620     SetGWorld( origPort, origDevice );
 621 }
 622
 623 wxImage wxBitmap::ConvertToImage() const
 624 {
 625     wxImage image;
 626
 627     wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
 628
 629     // create an wxImage object
 630     int width = GetWidth();
 631     int height = GetHeight();
 632     image.Create( width, height );
 633
 634     unsigned char *data = image.GetData();
 635
 636     wxCHECK_MSG( data, wxNullImage, wxT("Could not allocate data for image") );
 637
 638     WXHBITMAP origPort;
 639     GDHandle  origDevice;
 640     int      index;
 641     RGBColor color;
 642     // background color set to RGB(16,16,16) in consistent with wxGTK
 643     unsigned char mask_r=16, mask_g=16, mask_b=16;
 644     SInt16   r,g,b;
 645     wxMask  *mask = GetMask();
 646
 647     GetGWorld( &origPort, &origDevice );
 648     LockPixels(GetGWorldPixMap(GetHBITMAP()));
 649     SetGWorld( GetHBITMAP(), NULL);
 650
 651     // Copy data into image
 652     index = 0;
 653     for (int yy = 0; yy < height; yy++)
 654     {
 655         for (int xx = 0; xx < width; xx++)
 656         {
 657             GetCPixel(xx,yy, &color);
 658             r = ((color.red ) >> 8);
 659             g = ((color.green ) >> 8);
 660             b = ((color.blue ) >> 8);
 661             data[index    ] = r;
 662             data[index + 1] = g;
 663             data[index + 2] = b;
 664             if (mask)
 665             {
 666                 if (mask->PointMasked(xx,yy))
 667                 {
 668                     data[index    ] = mask_r;
 669                     data[index + 1] = mask_g;
 670                     data[index + 2] = mask_b;
 671                 }
 672             }
 673             index += 3;
 674         }
 675     }
 676     if (mask)
 677     {
 678         image.SetMaskColour( mask_r, mask_g, mask_b );
 679         image.SetMask( true );
 680     }
 681
 682     // Free resources
 683     UnlockPixels(GetGWorldPixMap(GetHBITMAP()));
 684     SetGWorld(origPort, origDevice);
 685
 686     return image;
 687 }
 688
 689
 690 bool wxBitmap::SaveFile(const wxString& filename, wxBitmapType type,
 691                         const wxPalette *palette) const
 692 {
 693     wxBitmapHandler *handler = FindHandler(type);
 694
 695     if ( handler )
 696     {
 697         return handler->SaveFile(this, filename, type, palette);
 698     }
 699     else
 700     {
 701         wxImage image = ConvertToImage();
 702
 703         return image.SaveFile(filename, type);
 704     }
 705
 706     wxLogWarning("no bitmap handler for type %d defined.", type);
 707     return false;
 708 }
 709
 710 bool wxBitmap::Ok() const
 711 {
 712    return (M_BITMAPDATA && M_BITMAPDATA->m_ok);
 713 }
 714
 715 int wxBitmap::GetHeight() const
 716 {
 717    wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 718
 719    return M_BITMAPDATA->m_height;
 720 }
 721
 722 int wxBitmap::GetWidth() const
 723 {
 724    wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 725
 726    return M_BITMAPDATA->m_width;
 727 }
 728
 729 int wxBitmap::GetDepth() const
 730 {
 731    wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 732
 733    return M_BITMAPDATA->m_depth;
 734 }
 735
 736 int wxBitmap::GetQuality() const
 737 {
 738    wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 739
 740    return M_BITMAPDATA->m_quality;
 741 }
 742
 743 wxMask *wxBitmap::GetMask() const
 744 {
 745    wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
 746
 747    return M_BITMAPDATA->m_bitmapMask;
 748 }
 749
 750 void wxBitmap::SetWidth(int w)
 751 {
 752     if (!M_BITMAPDATA)
 753         m_refData = new wxBitmapRefData;
 754
 755     M_BITMAPDATA->m_width = w;
 756 }
 757
 758 void wxBitmap::SetHeight(int h)
 759 {
 760     if (!M_BITMAPDATA)
 761         m_refData = new wxBitmapRefData;
 762
 763     M_BITMAPDATA->m_height = h;
 764 }
 765
 766 void wxBitmap::SetDepth(int d)
 767 {
 768     if (!M_BITMAPDATA)
 769         m_refData = new wxBitmapRefData;
 770
 771     M_BITMAPDATA->m_depth = d;
 772 }
 773
 774 void wxBitmap::SetQuality(int q)
 775 {
 776     if (!M_BITMAPDATA)
 777         m_refData = new wxBitmapRefData;
 778
 779     M_BITMAPDATA->m_quality = q;
 780 }
 781
 782 void wxBitmap::SetOk(bool isOk)
 783 {
 784     if (!M_BITMAPDATA)
 785         m_refData = new wxBitmapRefData;
 786
 787     M_BITMAPDATA->m_ok = isOk;
 788 }
 789
 790 wxPalette *wxBitmap::GetPalette() const
 791 {
 792    wxCHECK_MSG( Ok(), NULL, wxT("Invalid bitmap  GetPalette()") );
 793
 794    return &M_BITMAPDATA->m_bitmapPalette;
 795 }
 796
 797 void wxBitmap::SetPalette(const wxPalette& palette)
 798 {
 799     if (!M_BITMAPDATA)
 800         m_refData = new wxBitmapRefData;
 801
 802     M_BITMAPDATA->m_bitmapPalette = palette ;
 803 }
 804
 805 void wxBitmap::SetMask(wxMask *mask)
 806 {
 807     if (!M_BITMAPDATA)
 808         m_refData = new wxBitmapRefData;
 809
 810     // Remove existing mask if there is one.
 811     if (M_BITMAPDATA->m_bitmapMask)
 812         delete M_BITMAPDATA->m_bitmapMask;
 813
 814     M_BITMAPDATA->m_bitmapMask = mask ;
 815 }
 816
 817 WXHBITMAP wxBitmap::GetHBITMAP() const
 818 {
 819    wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") );
 820
 821    return M_BITMAPDATA->m_hBitmap;
 822 }
 823
 824 PicHandle wxBitmap::GetPict() const
 825 {
 826    wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") );
 827
 828    PicHandle picture;       // This is the returned picture
 829
 830    // If bitmap already in Pict format return pointer
 831    if(M_BITMAPDATA->m_bitmapType == kMacBitmapTypePict) {
 832        return M_BITMAPDATA->m_hPict;
 833    }
 834    else if(M_BITMAPDATA->m_bitmapType != kMacBitmapTypeGrafWorld) {
 835        // Invalid bitmap
 836        return NULL;
 837    }
 838
 839    RGBColor  gray = { 0xCCCC ,0xCCCC , 0xCCCC } ;
 840    RGBColor  white = { 0xffff ,0xffff , 0xffff } ;
 841    RGBColor  black = { 0x0000 ,0x0000 , 0x0000 } ;
 842    CGrafPtr  origPort;
 843    GDHandle  origDev ;
 844    wxMask   *mask;
 845    Rect      portRect ;
 846
 847    GetPortBounds( GetHBITMAP() , &portRect ) ;
 848    int width = portRect.right - portRect.left ;
 849    int height = portRect.bottom - portRect.top ;
 850
 851    LockPixels( GetGWorldPixMap( GetHBITMAP() ) ) ;
 852    GetGWorld( &origPort , &origDev ) ;
 853
 854    mask = GetMask();
 855
 856    SetGWorld( GetHBITMAP() , NULL ) ;
 857
 858    picture = OpenPicture(&portRect);   // open a picture, this disables drawing
 859    if(!picture) {
 860        return NULL;
 861    }
 862
 863    if( mask )
 864    {
 865 #ifdef __DARWIN__
 866        RGBColor trans = white;
 867 #else
 868        RGBBackColor( &gray );
 869        EraseRect( &portRect );
 870        RGBColor trans = gray;
 871 #endif
 872        RGBForeColor( &black ) ;
 873        RGBBackColor( &white ) ;
 874        PenMode(transparent);
 875
 876        for ( int y = 0 ; y < height ; ++y )
 877        {
 878            for( int x = 0 ; x < width ; ++x )
 879            {
 880                if ( !mask->PointMasked(x,y) )
 881                {
 882                    RGBColor col ;
 883
 884                    GetCPixel( x + portRect.left , y + portRect.top , &col ) ;
 885                    SetCPixel( x + portRect.left , y + portRect.top , &col ) ;
 886                }
 887                else {
 888                    // With transparency this sets a blank pixel
 889                    SetCPixel( x + portRect.left , y + portRect.top , &trans);
 890                }
 891            }
 892        }
 893    }
 894    else
 895    {
 896        RGBBackColor( &gray ) ;
 897        EraseRect(&portRect);
 898        RGBForeColor( &black ) ;
 899        RGBBackColor( &white ) ;
 900
 901        CopyBits(GetPortBitMapForCopyBits(GetHBITMAP()),
 902                 // src PixMap - we copy image over itself -
 903                 GetPortBitMapForCopyBits(GetHBITMAP()),
 904                 //  dst PixMap - no drawing occurs
 905                 &portRect,    // srcRect - it will be recorded and compressed -
 906                 &portRect,    // dstRect - into the picture that is open -
 907                 srcCopy,NULL); // copyMode and no clip region
 908    }
 909    ClosePicture();                  // We are done recording the picture
 910    UnlockPixels( GetGWorldPixMap( GetHBITMAP() ) ) ;
 911    SetGWorld( origPort , origDev ) ;
 912
 913    return picture;                  // return our groovy pict handle
 914 }
 915
 916 void wxBitmap::AddHandler(wxBitmapHandler *handler)
 917 {
 918     sm_handlers.Append(handler);
 919 }
 920
 921 void wxBitmap::InsertHandler(wxBitmapHandler *handler)
 922 {
 923     sm_handlers.Insert(handler);
 924 }
 925
 926 bool wxBitmap::RemoveHandler(const wxString& name)
 927 {
 928     wxBitmapHandler *handler = FindHandler(name);
 929     if ( handler )
 930     {
 931         sm_handlers.DeleteObject(handler);
 932         return TRUE;
 933     }
 934     else
 935         return FALSE;
 936 }
 937
 938 wxBitmapHandler *wxBitmap::FindHandler(const wxString& name)
 939 {
 940     wxNode *node = sm_handlers.First();
 941     while ( node )
 942     {
 943         wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 944         if ( handler->GetName() == name )
 945             return handler;
 946         node = node->Next();
 947     }
 948     return NULL;
 949 }
 950
 951 wxBitmapHandler *wxBitmap::FindHandler(const wxString& extension, wxBitmapType type)
 952 {
 953     wxNode *node = sm_handlers.First();
 954     while ( node )
 955     {
 956         wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 957         if ( handler->GetExtension() == extension &&
 958                     (type == -1 || handler->GetType() == type) )
 959             return handler;
 960         node = node->Next();
 961     }
 962     return NULL;
 963 }
 964
 965 wxBitmapHandler *wxBitmap::FindHandler(wxBitmapType type)
 966 {
 967     wxNode *node = sm_handlers.First();
 968     while ( node )
 969     {
 970         wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
 971         if (handler->GetType() == type)
 972             return handler;
 973         node = node->Next();
 974     }
 975     return NULL;
 976 }
 977
 978 /*
 979  * wxMask
 980  */
 981
 982 wxMask::wxMask()
 983 {
 984     m_maskBitmap = 0;
 985 }
 986
 987 // Construct a mask from a bitmap and a colour indicating
 988 // the transparent area
 989 wxMask::wxMask(const wxBitmap& bitmap, const wxColour& colour)
 990 {
 991     m_maskBitmap = 0;
 992     Create(bitmap, colour);
 993 }
 994
 995 // Construct a mask from a bitmap and a palette index indicating
 996 // the transparent area
 997 wxMask::wxMask(const wxBitmap& bitmap, int paletteIndex)
 998 {
 999     m_maskBitmap = 0;
1000     Create(bitmap, paletteIndex);
1001 }
1002
1003 // Construct a mask from a mono bitmap (copies the bitmap).
1004 wxMask::wxMask(const wxBitmap& bitmap)
1005 {
1006     m_maskBitmap = 0;
1007     Create(bitmap);
1008 }
1009
1010 wxMask::~wxMask()
1011 {
1012         if ( m_maskBitmap )
1013         {
1014                 wxMacDestroyGWorld( m_maskBitmap ) ;
1015                 m_maskBitmap = NULL ;
1016         }
1017 }
1018
1019 // Create a mask from a mono bitmap (copies the bitmap).
1020 bool wxMask::Create(const wxBitmap& bitmap)
1021 {
1022    if ( m_maskBitmap )
1023    {
1024        wxMacDestroyGWorld( m_maskBitmap ) ;
1025        m_maskBitmap = NULL ;
1026    }
1027    wxCHECK_MSG( bitmap.GetBitmapType() == kMacBitmapTypeGrafWorld, false,
1028                 wxT("Cannot create mask from this bitmap type (TODO)"));
1029    // other types would require a temporary bitmap. not yet implemented
1030
1031    wxCHECK_MSG( bitmap.Ok(), false, wxT("Invalid bitmap"));
1032
1033    wxCHECK_MSG(bitmap.GetDepth() == 1, false,
1034                wxT("Cannot create mask from colour bitmap"));
1035
1036    m_maskBitmap = wxMacCreateGWorld(bitmap.GetWidth(), bitmap.GetHeight(), 1);
1037    Rect rect = { 0,0, bitmap.GetHeight(), bitmap.GetWidth() };
1038
1039    LockPixels( GetGWorldPixMap(m_maskBitmap) );
1040    LockPixels( GetGWorldPixMap(bitmap.GetHBITMAP()) );
1041    CopyBits(GetPortBitMapForCopyBits(bitmap.GetHBITMAP()),
1042             GetPortBitMapForCopyBits(m_maskBitmap),
1043             &rect, &rect, srcCopy, 0);
1044    UnlockPixels( GetGWorldPixMap(m_maskBitmap) );
1045    UnlockPixels( GetGWorldPixMap(bitmap.GetHBITMAP()) );
1046
1047    return FALSE;
1048 }
1049
1050 // Create a mask from a bitmap and a palette index indicating
1051 // the transparent area
1052 bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex)
1053 {
1054 // TODO
1055     wxCHECK_MSG( 0, false, wxT("Not implemented"));
1056     return FALSE;
1057 }
1058
1059 // Create a mask from a bitmap and a colour indicating
1060 // the transparent area
1061 bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour)
1062 {
1063         if ( m_maskBitmap )
1064         {
1065                 wxMacDestroyGWorld( m_maskBitmap ) ;
1066                 m_maskBitmap = NULL ;
1067         }
1068         wxCHECK_MSG( bitmap.GetBitmapType() == kMacBitmapTypeGrafWorld, false,
1069                  wxT("Cannot create mask from this bitmap type (TODO)"));
1070         // other types would require a temporary bitmap. not yet implemented
1071
1072     wxCHECK_MSG( bitmap.Ok(), false, wxT("Illigal bitmap"));
1073
1074         m_maskBitmap = wxMacCreateGWorld( bitmap.GetWidth() , bitmap.GetHeight() , 1 );
1075         LockPixels( GetGWorldPixMap( m_maskBitmap ) );
1076         LockPixels( GetGWorldPixMap( bitmap.GetHBITMAP() ) );
1077         RGBColor maskColor = colour.GetPixel();
1078
1079     // this is not very efficient, but I can't think
1080     // of a better way of doing it
1081         CGrafPtr        origPort ;
1082         GDHandle        origDevice ;
1083     RGBColor  col;
1084     RGBColor  colors[2] = {
1085         { 0xFFFF, 0xFFFF, 0xFFFF },
1086         { 0,      0,      0 }};
1087
1088         GetGWorld( &origPort , &origDevice ) ;
1089         for (int w = 0; w < bitmap.GetWidth(); w++)
1090     {
1091         for (int h = 0; h < bitmap.GetHeight(); h++)
1092         {
1093                         SetGWorld( bitmap.GetHBITMAP(), NULL ) ;
1094                         GetCPixel( w , h , &col ) ;
1095                         SetGWorld( m_maskBitmap , NULL ) ;
1096             if (col.red == maskColor.red && col.green == maskColor.green && col.blue == maskColor.blue)
1097             {
1098                                 SetCPixel( w , h , &colors[0] ) ;
1099             }
1100             else
1101             {
1102                                 SetCPixel( w , h , &colors[1] ) ;
1103             }
1104         }
1105     }
1106         UnlockPixels( GetGWorldPixMap( (CGrafPtr) m_maskBitmap ) ) ;
1107         UnlockPixels( GetGWorldPixMap( bitmap.GetHBITMAP() ) ) ;
1108         SetGWorld( origPort , origDevice ) ;
1109
1110     return TRUE;
1111 }
1112
1113 bool wxMask::PointMasked(int x, int y)
1114 {
1115    WXHBITMAP origPort;
1116    GDHandle  origDevice;
1117    RGBColor  color;
1118    bool masked = true;
1119
1120    GetGWorld( &origPort, &origDevice);
1121
1122    //Set port to mask and see if it masked (1) or not ( 0 )
1123    SetGWorld(m_maskBitmap, NULL);
1124    LockPixels(GetGWorldPixMap(m_maskBitmap));
1125    GetCPixel(x,y, &color);
1126    masked = !(color.red == 0 && color.green == 0 && color.blue == 0);
1127    UnlockPixels(GetGWorldPixMap(m_maskBitmap));
1128
1129    SetGWorld( origPort, origDevice);
1130
1131    return masked;
1132 }
1133
1134 /*
1135  * wxBitmapHandler
1136  */
1137
1138 IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject)
1139
1140 bool wxBitmapHandler::Create(wxBitmap *bitmap, void *data, long type, int width, int height, int depth)
1141 {
1142     return FALSE;
1143 }
1144
1145 bool wxBitmapHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1146         int desiredWidth, int desiredHeight)
1147 {
1148     return FALSE;
1149 }
1150
1151 bool wxBitmapHandler::SaveFile(const wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette)
1152 {
1153     return FALSE;
1154 }
1155
1156 /*
1157  * Standard handlers
1158  */
1159
1160 class WXDLLEXPORT wxPICTResourceHandler: public wxBitmapHandler
1161 {
1162     DECLARE_DYNAMIC_CLASS(wxPICTResourceHandler)
1163 public:
1164     inline wxPICTResourceHandler()
1165     {
1166         m_name = "Macintosh Pict resource";
1167         m_extension = "";
1168         m_type = wxBITMAP_TYPE_PICT_RESOURCE;
1169     };
1170
1171     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1172           int desiredWidth, int desiredHeight);
1173 };
1174 IMPLEMENT_DYNAMIC_CLASS(wxPICTResourceHandler, wxBitmapHandler)
1175
1176 bool  wxPICTResourceHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1177           int desiredWidth, int desiredHeight)
1178 {
1179         Str255 theName ;
1180
1181 #if TARGET_CARBON
1182         c2pstrcpy( (StringPtr) theName , name ) ;
1183 #else
1184         strcpy( (char *) theName , name ) ;
1185         c2pstr( (char *)theName ) ;
1186 #endif
1187
1188         PicHandle thePict = (PicHandle ) GetNamedResource( 'PICT' , theName ) ;
1189         if ( thePict )
1190         {
1191                 PictInfo theInfo ;
1192
1193                 GetPictInfo( thePict , &theInfo , 0 , 0 , systemMethod , 0 ) ;
1194                 DetachResource( (Handle) thePict ) ;
1195                 M_BITMAPHANDLERDATA->m_bitmapType = kMacBitmapTypePict ;
1196                 M_BITMAPHANDLERDATA->m_hPict = thePict ;
1197                 M_BITMAPHANDLERDATA->m_width =  theInfo.sourceRect.right - theInfo.sourceRect.left ;
1198                 M_BITMAPHANDLERDATA->m_height = theInfo.sourceRect.bottom - theInfo.sourceRect.top ;
1199
1200                 M_BITMAPHANDLERDATA->m_depth = theInfo.depth ;
1201                 M_BITMAPHANDLERDATA->m_ok = true ;
1202                 M_BITMAPHANDLERDATA->m_numColors = theInfo.uniqueColors ;
1203 //              M_BITMAPHANDLERDATA->m_bitmapPalette;
1204 //              M_BITMAPHANDLERDATA->m_quality;
1205                 return TRUE ;
1206         }
1207         return FALSE ;
1208 }
1209
1210 #if 0   // The following is an example for creating a bitmap handler
1211
1212 // TODO: bitmap handlers, a bit like this:
1213 class WXDLLEXPORT wxBMPResourceHandler: public wxBitmapHandler
1214 {
1215     DECLARE_DYNAMIC_CLASS(wxBMPResourceHandler)
1216 public:
1217     inline wxBMPResourceHandler()
1218     {
1219         m_name = "Windows bitmap resource";
1220         m_extension = "";
1221         m_type = wxBITMAP_TYPE_BMP_RESOURCE;
1222     };
1223
1224     virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
1225           int desiredWidth, int desiredHeight);
1226 };
1227 IMPLEMENT_DYNAMIC_CLASS(wxBMPResourceHandler, wxBitmapHandler)
1228
1229 #endif
1230
1231 void wxBitmap::CleanUpHandlers()
1232 {
1233     wxNode *node = sm_handlers.First();
1234     while ( node )
1235     {
1236         wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
1237         wxNode *next = node->Next();
1238         delete handler;
1239         delete node;
1240         node = next;
1241     }
1242 }
1243
1244 void wxBitmap::InitStandardHandlers()
1245 {
1246     AddHandler(new wxPICTResourceHandler) ;
1247     AddHandler(new wxICONResourceHandler) ;
1248 }